Patents by Inventor Max Maierhofer

Max Maierhofer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Louver grease filter
    Patent number: 4319898
    Abstract: A filter for removing airborne grease has spaced front and rear walls each with a series of transverse louvers extending into the interior of the filter and opening downwardly. A filter media of expanded metal sheets is sandwiched between the front and rear walls.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: March 16, 1982
    Assignee: Air Filter Corporation
    Inventor: Max Maierhofer